<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>网上请假系统</title>
    <style>
        /* 页面背景 */
        body {
            margin: 0;
            padding: 0;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: #2C3E50; /* 深色背景，与侧边栏风格一致 */
            font-family: 'Arial', sans-serif;
        }

        /* 欢迎语的样式 */
        .welcome-message {
            text-align: center;
            font-size: 36px;
            color: #ECF0F1; /* 浅灰色文字，和深色背景搭配 */
            background-color: rgba(44, 62, 80, 0.8); /* 深色半透明背景，和侧边栏颜色呼应 */
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            animation: fadeIn 2s ease-in-out;
        }

        /* 动画效果：文字渐变显示 */
        @keyframes fadeIn {
            0% {
                opacity: 0;
                transform: scale(0.8);
            }
            100% {
                opacity: 1;
                transform: scale(1);
            }
        }

        .highlight {
            color: #F39C12; /* 温暖的金色高亮 */
            font-weight: bold;
            text-shadow: 2px 2px 8px rgba(255, 255, 255, 0.4);
        }
    </style>
</head>
<body>

<div class="welcome-message">
    <h1>欢迎来到 <span class="highlight">网上请假系统</span>！</h1>
    <p>让请假变得简单与高效！</p>
</div>


</body>
</html>
